How do you turn off the see-through for this model?

[mayn0043]

I was working on this human model for a school project, but for some reason, the model went from looking normal to being like a see-through even though I don't remember enabling an option like this.

I don't know if I clicked on a hotkey by mistake or if something happened during the modelling process. Is there a way this can be disabled?

[sean.roberts2EQ7M]

It seems like you have a single-side material applied & the normals flipped.

Have you tried using "flip" under "Edit Polygons" with all the faces selected?

[mayn0043]

Thank you for your answer. Sadly, I tried the 'Flip', but the problem remained.
Although, you're probably right on the money in terms of it being a problem with it being a single-sided material and the normals.
Thank you for your help regardless.

[rendermaster]

do you mean like like an xray mode? select the object and press ALT X